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ser-zykov [4K]
2 years ago
15

find 40% of 60 using two different strageties, one of which must include a pictorial model or digram?pls help

Mathematics
1 answer:
igor_vitrenko [27]2 years ago
6 0
One way would be to convert 40% into a fraction and multiply.

40% = 2/5

2/5 * 60 = 24

Drawing a diagram could involve drawing a whole (etc. a circle) and dividing it into fifths, then shading 2 of it with each section representing 12. Hope this helps!<span />
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Mark the statements that are true.
lara [203]

Answer:

Correct answers:

A. An angle that measures \frac{\pi}{6}  radians also measures  30^o

C. An angle that measures 180^o  also measures \pi  radians

Step-by-step explanation:

Recall the formula to transform radians to degrees and vice-versa:

\angle\,radians=\frac{\pi}{180^o} \,* \,\angle degrees\\  \\\angle\,degrees=\frac{180^o}{\pi} \,* \,\angle radians

Therefore we can investigate each of the statements, and find that when we have a \frac{\pi}{6}  radians angle, then its degree formula becomes:

\angle\,degrees=\frac{180^o}{\pi} \,* \,\angle radians\\\angle\,degrees=\frac{180^o}{\pi} \,* \,\frac{\pi}{6} \\\angle\,degrees=\frac{180^o}{6} \\\angle\,degrees=30^o

also when an angle measures 180^o  , its radian measure is:

\angle\,radians=\frac{\pi}{180^o} \,* \,\angle degrees\\\angle\,radians=\frac{\pi}{180^o} \,* \,180^o\\\angle\,radians=\pi

The other relationships are not true as per the conversion formulas

7 0
3 years ago
At a camp, 20 children were surveyed to see what size shirt they wear. 5 of the students said they were a Small shirt. If there
Kisachek [45]

Answer:

aproximately 77

Step-by-step explanation:

because you need to divide 308 by 20 you get 15.4 then u multiply 15.4 by 5 and then u get 77

5 0
3 years ago
35/100 and 5/100 are proportional right?
maria [59]
In order to know that, you need to divide it from other, if it would be perfect number then your answer will be "YES" & if they not then it will be "NO"

35/100 / 5/100

You can re-write it as:
35/100 * 100/5 = 35/5 = 7

So, they are proportional to each other,.

Hope this helps!

7 0
3 years ago
What is 7761131 rounded to the nearest million
Aleks04 [339]

Answer:

I believe it would be 8,000,000

Hope this helps!

Step-by-step explanation:

6 0
3 years ago
Plz answer it fast...
Sveta_85 [38]

Answer:

Rs 2163.20.

Step-by-step explanation:

The formula for this is

A = P(1 + r)^t     where P is the amount invested, r = the rate (as a decimal) and t = the number of years.

So for rs 2000 we have:

A = 2000(1 + 0.04)^2 = Rs 2163.20

4 0
3 years ago
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